Arsenal manager Arsene Wenger accepts his side's "suicidal" defending has left them with a mountain to climb to avoid elimination from the Champions League following a 3-1 home defeat by Monaco in their last-16 first leg tie.

Bayer Leverkusen coach Roger Schmidt has told his players they will need to find another gear if they are to overcome Champions League opponents Atletico Madrid - a side "nobody likes playing against".

Arsenal manager Arsene Wenger feels his side have "come up a level" in recent weeks, but warns there is plenty of hard work ahead if they are to get past Monaco and reach the quarter-finals of the Champions League.